Freshwater invertebrate surveys

There are a number of species of freshwater invertebrate that receive legal protection, such as white-clawed crayfish, medicinal leach, pearl mussel, Desmoulin’s whorl snail and southern damselfly, which may require consideration at the planning stage.

Freshwater invertebrate families and species differ in their sensitivity to a range of stresses. The presence of the range of families or species can therefore allow for accurate assessment of long-term water quality.

How we can help you

We have a number of in-house invertebrate specialists capable of kick, sweep and other sampling methods, identifying aquatic invertebrates and calculating indices of water quality including the Biological Monitoring Working Party (BMWP) Score, Average Score per Taxon (ASPT), LIFE and River Invertebrate Prediction and Classification System (RIVPACS).

Our in-house invertebrate specialists are licensed to conduct surveys, using the appropriate techniques and have a wealth of experience conducting surveys, interpreting the results and designing and conducting effective mitigation where appropriate.

To discuss your requirements or the various freshwater services that we offer, please contact us today!

Thomson Ecology Handbook

This online version of the Thomson Ecology Handbook provides a general overview of current wildlife legislation* and is aimed at helping project managers understand and plan for ecology from the start.

Find out more

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